!3 When a page is renamed, any links to that page from subpages pages are changed. 

First build parent & child pages where one refers to the other.

|Page creator.|
|Page name.|Page contents.|valid?|
|!-ParentPage-!|!-refer to .ParentPage.ChildPage-!|true|
|!-ParentPage.ChildPage-!|whatever |true|

Then rename the target page.

|Response Requester.|
|uri   |status?|
|!-ParentPage.ChildPage?responder=renamePage&newName=NewChild-!||

Next fetch the Source page.

|Response Requester.|
|uri|valid?|contents?|
|!-ParentPage-!|true||

Make sure that the new target name is present and that the old name is not.

|Response Examiner.|
|type  |pattern|matches?|
|contents|!-href="ParentPage\.NewChild"-!|true|
|contents|!-ParentPage\.ChildPage-!|false|


